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GLAST sensitivity to cosmological dark matter annihilations into γ-rays
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
2007 (English)In: First GLAST Symposium, American Institute of Physics (AIP), 2007, 504-505 p.Conference paper, Published paper (Refereed)
Abstract [en]

Pair annihilation of weakly interacting massive particle (WIMP) dark matter into high energy photons taking place in dark matter halos at all redshifts might contribute to the extragalactic diffuse gamma-ray radiation. The γ- annihilation channel would give rise to a distinct feature in the spectrum, a line which is distorted by the integration over all cosmological redshifts. We present a study of GLAST sensitivity to detect an extragalactic signal from a generic, thermal WIMP with a continuous spectrum part, modeled with annihilations into bb̄, and a γ-line, from the 2γ final state.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2007. 504-505 p.
Series
AIP Conference Proceedings, ISSN 0094-243X ; 921
Keyword [en]
Cosmology, Dark matter, Extra galactic gamma-ray background, Halo structure
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-154922DOI: 10.1063/1.2757423ISI: 000248569700169Scopus ID: 2-s2.0-78649768403ISBN: 978-073540431-1 (print)OAI: oai:DiVA.org:kth-154922DiVA: diva2:766199
Conference
1st Gamma-ray Large Area Space Telescope Symposium, GLAST, 5 February 2007 through 8 February 2007, Stanford, CA, United States
Note

QC 20141126

Available from: 2014-11-26 Created: 2014-10-29 Last updated: 2014-11-26Bibliographically approved

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